Finding the Fourth Proportional to 788,349.06, 1,087,921.62 and 425,772.99
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Solution
The fourth proportional to 788,349.06, 1,087,921.62 and 425,772.99 is: 587,566.68
Step by Step Solution
- Step 1: Write the proportion equation
788,349.06 : 1,087,921.62 = 425,772.99 : x - Step 2: Convert to fraction form
788,349.06/1,087,921.62 = 425,772.99/x - Step 3: Cross multiply
788,349.06x = 1,087,921.62 × 425,772.99 - Step 4: Simplify right side
788,349.06x = 463,207,641,033.04 - Step 5: Solve for x
x = 463,207,641,033.04/788,349.06 - Step 6: Final answer
x = 587,566.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.